defmodule Requests.Payments.Sources.Id do
  @type t :: %__MODULE__{
          type: String.t(),
          id: String.t(),
          cvv: String.t(),
          payment_method: String.t()
        }

  @enforce_keys [:type, :id]
  defstruct [
    :type,
    :id,
    :cvv,
    :payment_method
  ]

  def build(raw_params) when is_map(raw_params) do
    params = Enum.into(raw_params, %{}, fn {key, value} -> {convert(key), value} end)

    %{
      type: "id",
      id: params[:id],
      cvv: params[:cvv],
      payment_method: params[:payment_method]
    }
  end

  def build(_), do: nil

  defp convert(key) when is_binary(key), do: String.to_existing_atom(key)

  defp convert(key) when is_atom(key), do: key
end